"""



"""
from django.contrib.auth.backends import ModelBackend
import re

from apps.users.models import User


class MyAuthenticateBackend(ModelBackend):
    def authenticate(self, request, username=None,
                     password=None, **kwargs):
        try:
            # 1,判断username,是否是手机号
            if re.match(r'^1[3-9]\d{9}$', username):
                user = User.objects.get(mobile=username)
            else:
                # 2,否则使用用户名查询
                user = User.objects.get(username=username)
        except User.DoesNotExist:
            return None

        return user